1.2-v, 16-bit Audio A/d Converter With Suppressed Latch Error Noise

We have improved the noise-shaping signal flow in order to solve the latch error problem at low voltage supply and have fabricated a 1.2-V, 16-bit swing-suppression A/D converter for audio. The converter achieves S/(N+THD) of 91.5 dB, DR of 94.0 dB, and low power consumption of 6.5 mW.